I LOVE this workout! It only takes 10 minutes and it’s very effective. Heck, you even get to walk half of it. This workout isn’t just an excellent workout for your cardio-vascular system. It also is great a developing balance and agility. Just start off slow until you get the footwork down a bit and then slowly work up the speed. By the time you get to the sprints you’ll think they’re the easy part. Check it out!